Bangaru Laxman, a former president of the Bharatiya Janata Party (BJP), was on Friday convicted by a Delhi court more than a decade after being caught on camera allegedly accepting a bribe from a journalist posing as an arms dealer.
Media reports said a special court held Laxman guilty of accepting 100,000 rupees in 2001 in what was later revealed to be a sting operation by the Tehelka website.
Laxman resigned as his party's president soon after the video footage was made public.
Laxman faces a maximum jail term of five years and has been taken into custody, media reports said. A sentencing hearing is scheduled for Saturday.